((2R)-4,6-Dioxabicyclo[3.3.0]oct-2-yloxy)-N-((1S,2R)-3-{[(3-aminophenyl)sulfonyl] [6-(ethylthiocarbonylamino)-2,2-dimethylhexyl]amino}-2-hydroxy-1-benzylpropyl) carboxamide AIDS-095612 AIDS095612